Microbiology

With this test, another test to figure out the “oxygen requirements” of the organism was done in a “thioglycollate agar tube” from which will allow the organism to grow either towards the top of the agar where oxygen exists, an “aerobic” microbe, or to the bottom of the tube where its considered “anaerobic”, or dispersed between the tube to show that it’s a “facultative anaerobe” (MB 352 Laboratory manual pg 47). Considering that after incubation, the organism did not grow through the tube but…

CEE 467 – ENVIRONMENTAL MICROBIOLOGY NAME: ERICK PEREIRA DANTAS DATE: SEPTEMBER 4th, 2014 PROFESSOR: DR. MORTEZA ABBASZADEGAN TA: LAUREN MCBURNETT LABORATORY #2 – BACTERIOLOGICAL EXAMINATION OF WATER: MOST PROBABLE NUMBER TEST AND MEMBRANE FILTRATION METHOD ABSTRACT: The most probable number (MPN) test and the membrane filter (MF) method have as goal to detect and estimate the presence of coliforms in a sample. Their importance in the field of environmental engineering is to support…

safety? It requires a “multitude of different professionals working together, making use of the best available science and technologies, less harmful cleaning products, requiring expertise from a variety of different disciplines such as: toxicology, microbiology, parasitology, nutrition, health economics, and human and veterinary medicine.” Also, wise food choices, using information provided in food labeling, and make certain of supply chain compliance with strong food-safety practices.…

Introduction: The name Pseudomonas is derived from the greek and latin words which means “false unit“ (pseudo = false, greek; monas = single unit, latin). “Monas” was used in the early history of microbiology to define single-celled organisms. In 1786 Otto Friedrich Müller, from Copenhagen, classified the bacteria and named the pseudomonads, they came into the group of vibriones (which was defined as group of shaking bacteria). Many years later it was detected that Pseudomonas are motile. They…

Clostridium perfringens is typically found in soil and if this is eaten or coming in contact with the animal it can cause variety of diseases, especially in domestic animals. These diseases include different enteric syndromes such as bovine and ovine enterotoxemia, fowl necrotic enteritis, and lamb dysentery. Strains of most toxin types like alpha and beta toxin have been involved in necrotic enteritis beta toxin is caused by type-C strains. The pulpy kidney disease is caused by type-D strains…

Introduction: Bacteria and Fungi are important contributors of the living life. They however differ in their colony/ color/ size/shape/appearance. Bacteria are generally small in size but large in colonial structure, they are usually in the form of coccus, bacillus and spirillum, many times bacteria are of vivid colors because they have chlorophyll which also absorbs the light of different wavelengths which create natural colors of brown, pink, blue, orange and purple. Fungi on the other…

2.0 Introduction Consumption of foods and beverages that encourages a healthy living, better health and lowering the risk of sickness has become very popular among the consumer whom are health conscious. Hence, a lot more attention is paid to different food extracts such as green tea extracts, grape seed extracts and ginger extracts as they posed excellent antimicrobial, antioxidant and anti-carcinogenic properties (Martin et al. 2009). These extracts have great potential in improving the…

Kaitlyn Staub Mr. G Biology Honors 4 January 2016 Title The Effect of Different Music Genres on the Growth of the Bacteria Serratia marcescens Introduction Exploring the question of does music affect bacterial growth requires much research. The purpose of answering this question is to figure out how to slow down bacterial growth by music. Also, if needed, the purpose is to figure out how to speed up bacterial growth through music. The hypothesis is that if the bacteria Serratia marcescens…

impossible due to the commonality of shapes and physical features. Because of this, a wide range of biochemical tests were preformed in order to better identify the bacteria. Being able to identify an unknown was the most interesting part of the microbiology lab this semester, as well as, being able to preform the various tests. Proper aseptic technique was used throughout the semester and followed during all biochemical tests preformed, which are described throughout the paper beginning with a…

The End Zone: Measuring Antimicrobial Effectiveness with Zones of Inhibition Introduction: A Kirby-Bauer test is a microbiological method used as a form of testing bacterial resistance, it’s also known as a Zone of Inhibition test (1). The way in which the Zone of Inhibition was determined in this experiment was by measuring the diameter of the resisted zone in 3 areas and taking an average. As numerical data was required for this it means that in this experiment the Zone of Inhibition Test was…